IDiyas

For the Inventor, By the Inventor

Sendai, Japan

Yoshiaki Hisagen

USPTO Granted Patents = 10


Average Co-Inventor Count = 3.1

ph-index = 7

Forward Citations = 148(Granted Patents)


Location History:

  • Sendai, JA (1976 - 1977)
  • Sendai, JP (1978 - 1979)
  • Tagajyo, JP (1983)
  • Miyagi, JP (1984 - 2000)

Company Filing History:

goldMedal10 out of 58,129 
 
Sony Corporation
 patents
silverMedal2 out of 5,966 
 
Shin-etsu Chemical Co., Ltd.
 patents
bronzeMedal1 out of 1 
 
Mitsumaru Chemical Co. Ltd.
 patent
where one patent can have more than one assignee

Years Active: 1976-2000

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10 patents (USPTO):Explore Patents
1. 6033722 - Method for manufacturing electrode (2000-03-07),
2. 4443490 - Magnetic recording medium (1984-04-17),
3. 4368239 - Magnetic recording medium (1983-01-11),
4. 4172176 - Magnetic recording medium (1979-10-23),
5. 4156052 - Magnetic recording medium (1979-05-22),
6. 4131717 - Magnetic recording medium (1978-12-26),
7. 4047232 - Leader tape (1977-09-06),
8. 4007314 - Magnetic recording medium with silane lubricant (1977-02-08),
9. 4007313 - Magnetic recording medium (1977-02-08),
10. 3993846 - Magnetic recording medium (1976-11-23),
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